We explore workers' valuation of job flexibility, using a field experiment conducted on a Chinese job board. Our experimental job ads differ randomly in offering jobs that are flexible regarding when one works (time flexibility) or where one works (place flexibility), and offering different...

Using a large administrate dataset covering the universe of phone calls and airtime transfers in a country over a four year period, we examine the pattern of adoption of airtime transfers over time. We start by documenting strong network effects: increased usage of the new airtime transfer...